Attentional Systems in Humans and Monkeys

描述（由申请人提供）：最近对人类注意力的研究发现，在目标导向的注意力和刺激驱动的注意力重定向的皮层区域之间可能存在分歧。刺激驱动定向的腹侧额顶叶系统引起了特别的兴趣，因为该系统的损伤似乎会导致空间忽视综合征。由于对该系统的许多研究都是在猕猴身上进行的，因此，了解这种注意力模型是否适用于猕猴，将大大增强我们对该额顶叶系统在注意力中的作用的理解。我建议进行两个实验，以进一步了解猕猴和人类额顶叶系统之间的同源性，这些系统是目标导向控制和刺激驱动的注意力重定向的基础。我们将根据功能、地形组织和位置对两个物种的注意力相关区域之间的同源程度进行分类。这些实验的结果不仅会提高我们对…这也将为未来的功能磁共振成像和注意电生理研究提供指导。

DESCRIPTION (provided by applicant): Recent studies of human attention have uncovered a possible divide in the cortical areas underlying goal-directed attention and those underlying stimulus-driven reorienting of attention. The ventral frontoparietal system underlying stimulus-driven reorienting is of particular interest since it seems that damage to this system results in the syndrome of spatial neglect. Since many studies of this system take place in the macaque, our understanding of this frontoparietal system's role in attention will be greatly enhanced by understanding whether this model of attention generalizes to the macaque. I propose to perform a pair of experiments that will further our understanding of the homology between macaque and human frontoparietal systems underlying goal-directed control and stimulus-driven reorienting of attention. We will do this by classifying the degree of homology between the attention-related areas in both species according to function, topographic organization, and location. The results of these experiments will not only improve our understanding of the.attention system in both species, but will also serve as a guide to future fMRI and electrophysiological investigations of attention.